Association between long-term visit-to-visit resting heart rate variability and cognitive decline: evidence from two national cohorts. - Zheng, Guangjun; Zhou, Biying; Fang, Zhenger; Chen, Xia; Liu, Mingliang; He, Fudong; Zhang, Haofeng; Hao, Guang; Zhu, Haidong; Dong, Yanbin (BMC Psychiatry, 2025)